Air-brush.



F. J. LEDERER.

AIR BRUSH.

APPLICATION FILED N0v.12,1908.

Patentea'Apr. 20, 1909.

FREDERICK J. LEDERER, or'BUFFALoliI-Ewronni.

l' l .Am-Bawag l 4` ANo. 918,754.

Application mea November '12,19os: serial 110,462,236.

To all whom, it 'may concern: Y

Be it knownthat l, FnnnEmeK J. LED- nunu, a citizen' of the linued Stat-es, residing at Bull'alo, in the countjiY ol' Erie and Stat-e of tlet-acl'iably crmnected together in suc-h a inannerthat they-an be readily disconnectedfrom fone another and cleaned withouttrouble.

Other objects of the invention are to arrange and connect. the discharge nozzles for. the liquid and the air to the brush in such a manner that both nozzles can he. readilylat- Vtached to and detached fron: the brush at the saine time` and the (.liscl'iai'ge ends of the nozzles 'will at all times register with each other,

` thus permitting the employnient of nozzles having any desired shape 'at theirdisclmrge wards; to provide an aix' expansion chamber between the air supply valve and the air discharge nozzlel s'o'that the current of air passing from the disel'iarge nozzle-will not besub- -ject to violent iluctuations when the air valve is operated to l'egnla'te'the supply of au, and to so construe-t the handle ol` the.

brush that the discharge nozzleniav be se? cured thereto to extend at right. angles to or in line with the handle in accordance with the nature oi' the Work to he done.

`In the aecompan ing drawings: Figure 1 is a side 'elevation o an air brush embodying the invention, showing by full 'and broken lines different posit-ions of the nozzle. li'ig. is a. longitudinal sectional elevation ol' the 'same onan enlarged seale.- Fig. 3 is a crosssection, on au enlargedscale, of the liquid and air connection, on line. 3 3, Fig. 2. Fie'. 4 is a cross-section of the handle ol the brush on line t-4, Fig.- 2. i"ig. a cross-section of the discharge nozzles online 5-5, F ig. 2. Fig. 6 is a fragment-ary horizontal section through the discluirg` nozzles. a Fig.

7 is a perspective vieu' of the liquidA discharge nozzle.. lig.'8 is a fragment-ary elevationof the. liquid and air connection and the liquid receptacle of the ln'ush, showing the parts detached. Fig. 9 is a horizontal section of the coupling between the liquid receptacle and l(he liquid and ail" conneetion, on line Like lettersof reference refer to like parts inthe several figures.`

Specification ot Letters Paten-1a.." v`

w'. "f'l l A. f This handle is preferabl ,solid-fandisgprof t' vided With-ay longitudina 'airlinlet passage a which extend'sfrom thebottomV-ofxthe' han-- at its loWer-en'd'a' riipplejfaf'for*connectionfV with a' suitable' air supply oipeq-.Asecond i passage a'extends through it ehandleAsubf stantially parallelfivith lth passage andfiis or knob 2-lor' operating'fth valve. 4 sition o.tlie knob`o thelronbsidcofthe.; handle is such''that iticanbe readilycpeiiated by the fore. flngerof thejh ofdheoperatf y. which ras5s'the"handlein '11sig; thebrush# The earl. Y end and-side openings c arid-c', whichfcommw l nicate. With5the*clianiberlafandfar'fadapted i to receive .the end f of a-v tbejG Ing the' constructionvshown, the tbeCis screu-'edinthe .opening` ci, extendingA at fright' angles to .1 the handlfand a -s'cre'w ph "olossftlie fopening c, but. when desired t cftube'infaybc secured in the opening .oto elrtneridginflinegwith"4 the handle, as shownindottedflines'in'fFig. 1, andthe plug c* used tioyclose'ffthether opcning'c. The tubevCisclosfedat'.its'forward end to form an air expansion` chamber l by a connection D which islprovidcd witha plurality of small air passages d which extend i through the connectionand communicate at their Forward ends with theinteriorof an air i nozzle E which is screwed orotherwi-se se?4 l cured to thefront end ofthe connection D, and thus serve t-oconvey the air from lslieex` pansion chamber in'v the tube() to the air inozzle.. f F re resents a rece mele-for the' paint or f l other liquid used.l f Tlliis receptacle'is preferably detachably secured to theconnection 4I) by any suit-ablemeans.'Z Inthe construction shown, the 'connection D is plroyidedwithy a i depending portion or nipple f and the recep-v l l tacle F has a top jor cover f provided With an l uwardl -projecting neck f 2 Whichxis adaptl e to em race the n1 plef andhas a-bayonet` i connection therewit r l v v.

i. A forked feed ipe G is secured to thecover i' f and extends c own into the liquid'recepta-' represents theV handle Iair-pair brush.. i l

460 A die, being closedat-'its upper enda'nd having of theli'andl'egizis'provided,with" l cle 'l`liis` pipe-has a lconical upper end which fits snugly into a liquid discharge passage H which extends` through the nipple f and the body of the connection D and cornthat of the liquid nozzle;

municates at its front end with a liquid discharge nozzle I which is located within the air nozzle E with its inner end extending into the passage H.

discharge ends of the air and liquid T ie nozzles are similarly formed and are arranged one within the other with the discharge end of the air nozzle extending slightlybeyond In'the construc-V tion shown, these nozzles are flat, but nozzles of other forms may be used according to the nature of the work.l When flat nozzles, such as shown, are employed, the small space ing attached to and detached-from the brush.

The nozzles can thus-be put together in pro er position before being attached .to the air rush, and when so fitted are prevented from turning 'relative to each ot ier. The air' nozzle E ,can then bc screwed in place .upon the connection D, and the inner end of the liquid nozzle will be caused to enter the liquidpassage H, and as the inner end of the liquid nozzle. .I is tapered, a tight joint between this nozzle and the passa-gc H is se-' cured. The nozzle I also has a collar' /L near its inner end to assist in making a tight joint. When the nozzles are in )lace the s aces between the arms i of the liquid nozz e preferably register with tlie air passages (Zin the connection D and permit the air to pass freely to the discharge end of the nozzle,

K and L represent screw valves for controlling tlieair passage a? in the handle A and the liquid passage H in the connection D. By adjusting these valves the flow of air and liquid through these passages may be regulated as desired.

l claim as my invention:

1. In an airbrush, the combination with air and li( uid discharge nozzles, of a receptacle for t e liquid connected with saidliquid discharge nozzle, a handle having an an' supply passage, a valve in said passage for j controlling the iiow of air to said air nozzle,

and a tube of greater internal dianieterthan said air supply passage which connects said passage with said air-discharge nozzle and orins an air ex ansion chamber between said valve and s ai nozzle, substantially as set forth.

2. ln an air brush, the combination with,v air and li uid discharge nozzles, of a-recep- -tacle for t e liquidv connected. with said liquid discharge nozzle, a handle having an air supply passage, a valve vin said passage for controlling the iiow of air to said air nozzle,

and a tube which connects saidhandle'with said air and liquid nozzles and forms asupport forsaid nozzles, said tube 'communicating at its opposite ends with said air lsupply passage and said air discharge nozzle and being of greater internal diameter than said air supply. passage to formv an air expansion cha-mier etween-said valve and said nozzle, sub-. stantially asset for th.

3. In an air brush, the combination with air and li uid discharge nozzles, of a recep tacle for t e liquid connected' With'said li uid discharge nozzle, a handle for said brus i having an air supply passage and aplurality of openings communicating therewith and arranged at an angle to each other, and connections between said handle and said air discharge nozzle which are adapted to be se-` cured in either of said openinvs whereby said nozzle may extend at an angeto or lengths wise of said handle, substantially as set forth.

4. In an air brush, the combination -of air and liquid nozzles one arranged within the other with 'their'dischargeorifices 'in register and having lengaging parts which hold said nozzles from tunning relative to each other, a connection to which said V outer` nozzleis" detachably-secured, said 'inner nozzle being held o n said connection by said` outer nozzle,'and sources of air and vliquid supply connected with said nozzlesfsub;

stantially as set forth. v

5. In an air brush, tl-ie combination of an air nozzle, a-liquid nozzle arranged therein with its discharge orifice in register with, the

discharge orifice of said air` nozzle and having parts which interlock with arts on -sahid air j nozzle and hold. said no zz es from turning relative to each other, a connection to which the air nozzle is dctachably secured, said lquid nozzle being held on said connection by said air nozzle, and sources of air vand liquid supply connected with said air and liquid nozzles, substantially as-set forth Witness myhand, thisy 10th d ay of Nog veinber, 1908. .f

FREDERICK J LEDERER.

Witnesses:

C. B. Ho'aNEcK. E. C; Haan. 

